Repeat accumulate code division multiple access and its hybrid detection [PDF]
, 2008 In this paper, we propose the novel concept of Repeat Accumulate Code Division Multiple Access (RA-CDMA), which employs unique, user-specific channel code generator matrices (interleavers) for differentiating the users.
S. Chen +7 more
core +1 more source
Hybrid Iterative Multiuser Detection for Channel Coded Space Division Multiple Access OFDM Systems [PDF]
, 2006 Space division multiple access (SDMA) aided orthogonal frequency division multiplexing (OFDM) systems assisted by efficient multiuser detection (MUD) techniques have recently attracted intensive research interests.
Jiang, M. +5 more
core +1 more source
EXIT Chart Based Joint Code-Rate and Spreading-Factor Optimisation of Single-Carrier Interleave Division Multiple Access [PDF]
, 2007 —In this paper, we consider the joint code-rate and spreading-factor optimisation of turbo-style iterative joint detection and decoding assisted single-carrier interleave division multiple access (SC-IDMA) systems using different-rate convolutional codes
Zhang, R +3 more
core +1 more source
Initial and Post-Initial Code Acquisition in the Non-Coherent Multiple Input/Multiple Output Aided DS-CDMA Downlink [PDF]
, 2008 In this paper, we investigate the issues of both initial and post-initial acquisition schemes in the multiple-input/multiple-output (MIMO)-aided direct-sequence code-division multiple-access (DS-CDMA) downlink when communicating over spatially ...
Won, Seung, Won, SeungHwan, Hanzo, Lajos
core +1 more source
Three design aspects of multicarrier interleave division multiple access [PDF]
, 2008 This paper presents a novel generalized transceiver architecture, i.e., Multicarrier Interleave-Division-Multiplexing-aided Interleave Division Multiple Access (MC-IDM-IDMA). A parallel interference cancellation (PIC)-aided iterative multiuser detection (
Zhang, Rong, Hanzo, Lajos
core +1 more source
IEEE Access, 2020 Energy is one of the key enablers for robotic swarms. The feasibility of heterogeneous swarms to perform complex missions depends upon the energy stored in the robot batteries. Allowing multiple access energy transfer (MAET) in robot swarms provides more
Akshay Sarin, Al-Thaddeus Avestruz
doaj +1 more source
Spectral Efficiency Comparison of OFDM and MC-CDMA with Carrier Frequency Offset [PDF]
Radioengineering, 2017 Inter-carrier interference and multiple access interference due to carrier frequency offset (CFO) are two major factors that deteriorate the performance of orthogonal frequency division multiple access (OFDMA) and multicarrier code division multiple ...
J. Ahmed
doaj
Near-Optimum Iterative Multiuser Detection in Time-Frequency-Domain Spread Multicarrier DS-CDMA Systems [PDF]
, 2010 In this contribution we propose and study a novel iterative time-frequency-domain (TF-domain) multiuser detector (MUD) for the multicarrier direct-sequence code-division multiple-access system employing both T-domain and F-domain spreading, which, for ...
Yang, Lie-Liang +5 more
core +1 more source
CDMA/OTFS Sensing Outperforms Pure OTFS at the Same Communication Throughput
IEEE Open Journal of Vehicular TechnologyThere is a dearth of publications on the subject of spreading-aided Orthogonal Time Frequency Space (OTFS) solutions, especially for Integrated Sensing and Communication (ISAC), even though Code Division Multiple Access (CDMA) assisted multi-user OTFS ...
Hugo Hawkins +3 more
doaj +1 more source
IEEE Access, 2016 Toward the era of mobile internet and Internet of Things (IoT), numerous sensors and devices are being introduced and interconnected. To support such amount of data traffic, traditional wireless communication technologies are facing challenges both in ...
Su Hu +5 more
doaj +1 more source